How do the first and second editions of the Critique of Pure Reason differ in interpretation?

The first and second editions of the Critique of Pure Reason (1781 and 1787, respectively) differ primarily in their philosophical reception and the interpretive lens applied by readers.12

While Immanuel Kant published the second edition to clarify his original doctrine—which he felt had been widely misunderstood—the two versions have fostered distinct schools of thought:12

• Idealistic Interpretation: Readers who favor an idealistic reading of Kant’s philosophy typically prefer the first edition.12
• Realistic Interpretation: Those who adhere to a realistic view of his work generally prefer the second edition.12

Despite these interpretive differences, there is a broad consensus that both editions are equally challenging to read, as both are characterized by the technical jargon and rigid, artificial scaffolding common to the philosophical handbooks of Kant’s era. Ultimately, the controversy regarding the merits of the two editions persists, reflecting the ongoing debate over how to best reconcile Kant's transcendental framework with the nature of reality.12